A machine code program that traces and lists the variables used in a BASIC program.
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10 CLEAR 65194: LOAD "" CODE 65195,173
20 PRINT " To see your variables enter: RAND USR 65195"
30 PRINT "These program lines can be elim-inated, and your own program now loaded."
40 PRINT "Here's an example:"
45 PRINT "Hit enter to continue."
47 PAUSE 4e4
50 LET a=1: LET b=100: LET d$="hello"
60 FOR i=1 TO 5: NEXT i
64 RANDOMIZE USR 65195
65 STOP
100 SAVE "Varslist" LINE 10: SAVE "vars"CODE 65195,173